⚠️ Severe Thunderstorm Warning – Calhoun, IA; Pocahontas, IA; Sac, IA – Wednesday, June 17, 2026

Severe Thunderstorm Warning issued June 17 at 3:53AM CDT until June 17 at 4:45AM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Southern Pocahontas County in northwestern Iowa…
Northeastern Sac County in west central Iowa…
Calhoun County in west central Iowa…

* Until 445 AM CDT.

* At 352 AM CDT, a severe thunderstorm was located over Newell, or 8
miles east of Storm Lake, moving southeast at 60 mph.

HAZARD…60 mph wind gusts and half dollar size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Locations impacted include…
Pocahontas, Rockwell City, Manson, South Twin Lake, North Twin
Lake, Pomeroy, Fonda, Lohrville, Twin Lakes, Palmer, Varina,
Knierim, Rinard, Jolley, Pocahontas Municipal Airport, Twin Lakes
State Park, and Rockwell City Municipal Airport.

Instructions

For your protection move to an interior room on the lowest floor of a
building.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.